EP 0829545 B1 20010718 - Process for making a foaming slag on a stainless steel melt in an electric furnace
Title (en)
Process for making a foaming slag on a stainless steel melt in an electric furnace
Title (de)
Verfahren zum Erzeugen einer Schaumschlacke auf einer Rostfrei-Stahlschmelze in einem Elektroofen
Title (fr)
Procédé pour réaliser un laitier moussant au-dessus d'un acier inoxydable en fusion dans un four électrique
Publication
Application
Priority
FR 9611120 A 19960912
Abstract (en)
[origin: EP0829545A1] A method of forming a foamed slag on a stainless steel melt in an electric furnace involves introducing, into the slag, a powder containing metal oxide and carbon which react to form bubbles of the reduced metal vapour and carbon monoxide and thus create a stable foam. The metal oxide is an oxide of a volatile metal, especially zinc or lead, and at least part of the powder is dust from an electric steel making furnace.
IPC 1-7
IPC 8 full level
C21C 5/52 (2006.01); C21C 5/54 (2006.01); C21C 5/36 (2006.01)
CPC (source: EP KR US)
C21C 5/52 (2013.01 - KR); C21C 5/5264 (2013.01 - EP US); C21C 5/54 (2013.01 - EP US); C21C 2005/366 (2013.01 - EP US); C21C 2300/02 (2013.01 - EP US); Y02P 10/20 (2015.11 - EP US); Y10S 75/961 (2013.01 - US)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
EP 0829545 A1 19980318; EP 0829545 B1 20010718; AT E203280 T1 20010815; AU 3424797 A 19980319; AU 719924 B2 20000518; BR 9704689 A 19981229; CA 2210505 A1 19980312; CN 1067110 C 20010613; CN 1180751 A 19980506; DE 69705685 D1 20010823; DE 69705685 T2 20011122; ES 2158468 T3 20010901; FR 2753205 A1 19980313; FR 2753205 B1 19981204; ID 19645 A 19980723; JP H1088223 A 19980407; KR 100262876 B1 20000801; KR 19980024214 A 19980706; MX 9706898 A 19980731; TW 357195 B 19990501; US 6228137 B1 20010508; ZA 978124 B 19980303
DOCDB simple family (application)
EP 97401961 A 19970821; AT 97401961 T 19970821; AU 3424797 A 19970819; BR 9704689 A 19970911; CA 2210505 A 19970825; CN 97118425 A 19970911; DE 69705685 T 19970821; ES 97401961 T 19970821; FR 9611120 A 19960912; ID 973070 A 19970903; JP 26089997 A 19970909; KR 19970043184 A 19970829; MX 9706898 A 19970910; TW 86111897 A 19970820; US 92850097 A 19970912; ZA 978124 A 19970910